The term "Rainbow Division" is often used to refer to the 42nd Infantry Division of the United States Army. However, there are a few alternative synonyms that can be used to describe this renowned military unit. One such term is the "Rainbow Infantry Division", which highlights the division's focus on infantry warfare. Another synonym is the "Rainbow Brigade", emphasizing the unit's smaller organizational size compared to a division. Additionally, the "Rainbow Corps" is sometimes used to highlight the division's increased scale and scope. Regardless of the term used, the Rainbow Division remains a symbol of valor, diversity, and solidarity in military history.